Merge branch 'terrain18' into occlusionquery

Conflicts:
	apps/openmw/CMakeLists.txt
	apps/openmw/mwrender/renderingmanager.hpp

CMakeLists.txt

@@ -206,6 +206,7 @@ ENDIF(WIN32)
 ENDIF(OGRE_STATIC)
 include_directories("."
     ${OGRE_INCLUDE_DIR} ${OGRE_INCLUDE_DIR}/Ogre ${OGRE_INCLUDE_DIR}/OGRE ${OGRE_PLUGIN_INCLUDE_DIRS}
+    ${OGRE_Terrain_INCLUDE_DIR}
     ${OIS_INCLUDE_DIRS} ${Boost_INCLUDE_DIR}
     ${PLATFORM_INCLUDE_DIR}
     ${MYGUI_INCLUDE_DIRS}

apps/openmw/CMakeLists.txt

@@ -15,7 +15,7 @@ source_group(game FILES ${GAME} ${GAME_HEADER})
 
 add_openmw_dir (mwrender
     renderingmanager debugging sky player animation npcanimation creatureanimation actors objects
-    renderinginterface localmap occlusionquery
+    renderinginterface localmap occlusionquery terrain terrainmaterial
     )
 
 add_openmw_dir (mwinput
@@ -82,6 +82,7 @@ add_definitions(${SOUND_DEFINE})
 
 target_link_libraries(openmw
     ${OGRE_LIBRARIES}
+    ${OGRE_Terrain_LIBRARY}
     ${OGRE_STATIC_PLUGINS}
     ${OIS_LIBRARIES}
     ${Boost_LIBRARIES}

apps/openmw/mwrender/renderingmanager.cpp

@@ -23,6 +23,11 @@ RenderingManager::RenderingManager (OEngine::Render::OgreRenderer& _rend, const
 :mRendering(_rend), mObjects(mRendering), mActors(mRendering, environment), mAmbientMode(0), mDebugging(engine)
 {
     mRendering.createScene("PlayerCam", 55, 5);
+    mTerrainManager = new TerrainManager(mRendering.getScene());
+
+    //The fog type must be set before any terrain objects are created as if the
+    //fog type is set to FOG_NONE then the initially created terrain won't have any fog
+    configureFog(1, ColourValue(1,1,1));
 
     // Set default mipmap level (NB some APIs ignore this)
     TextureManager::getSingleton().setDefaultNumMipmaps(5);
@@ -66,6 +71,7 @@ RenderingManager::~RenderingManager ()
     //TODO: destroy mSun?
     delete mPlayer;
     delete mSkyManager;
+    delete mTerrainManager;
     delete mLocalMap;
     delete mOcclusionQuery;
 }
@@ -94,11 +100,15 @@ OEngine::Render::Fader* RenderingManager::getFader()
 void RenderingManager::removeCell (MWWorld::Ptr::CellStore *store){
     mObjects.removeCell(store);
     mActors.removeCell(store);
+    if (store->cell->isExterior())
+      mTerrainManager->cellRemoved(store);
 }
 
 void RenderingManager::cellAdded (MWWorld::Ptr::CellStore *store)
 {
     mObjects.buildStaticGeometry (*store);
+    if (store->cell->isExterior())
+      mTerrainManager->cellAdded(store);
 }
 
 void RenderingManager::addObject (const MWWorld::Ptr& ptr){
@@ -239,17 +249,17 @@ void RenderingManager::setAmbientMode()
   {
     case 0:
 
-      mRendering.getScene()->setAmbientLight(mAmbientColor);
+      setAmbientColour(mAmbientColor);
       break;
 
     case 1:
 
-      mRendering.getScene()->setAmbientLight(0.7f*mAmbientColor + 0.3f*ColourValue(1,1,1));
+      setAmbientColour(0.7f*mAmbientColor + 0.3f*ColourValue(1,1,1));
       break;
 
     case 2:
 
-      mRendering.getScene()->setAmbientLight(ColourValue(1,1,1));
+      setAmbientColour(ColourValue(1,1,1));
       break;
   }
 }
@@ -304,11 +314,13 @@ void RenderingManager::skipAnimation (const MWWorld::Ptr& ptr)
 void RenderingManager::setSunColour(const Ogre::ColourValue& colour)
 {
     mSun->setDiffuseColour(colour);
+    mTerrainManager->setDiffuse(colour);
 }
 
 void RenderingManager::setAmbientColour(const Ogre::ColourValue& colour)
 {
     mRendering.getScene()->setAmbientLight(colour);
+    mTerrainManager->setAmbient(colour);
 }
 
 void RenderingManager::sunEnable()

apps/openmw/mwrender/renderingmanager.hpp

@@ -3,6 +3,7 @@
 
 
 #include "sky.hpp"
+#include "terrain.hpp"
 #include "debugging.hpp"
 
 #include "../mwworld/class.hpp"
@@ -137,6 +138,8 @@ class RenderingManager: private RenderingInterface {
 
     OcclusionQuery* mOcclusionQuery;
 
+    TerrainManager* mTerrainManager;
+
     OEngine::Render::OgreRenderer &mRendering;
 
     MWRender::Objects mObjects;

apps/openmw/mwrender/terrain.cpp

@@ -0,0 +1,482 @@
+#include <OgreTerrain.h>
+#include <OgreTerrainGroup.h>
+
+#include "terrainmaterial.hpp"
+#include "terrain.hpp"
+
+#include "components/esm/loadland.hpp"
+
+#include <boost/lexical_cast.hpp>
+
+using namespace Ogre;
+
+namespace MWRender
+{
+
+    //----------------------------------------------------------------------------------------------
+    
+    TerrainManager::TerrainManager(SceneManager* mgr)
+    {
+        mTerrainGlobals = OGRE_NEW TerrainGlobalOptions();
+
+        TerrainMaterialGeneratorPtr matGen;
+        TerrainMaterialGeneratorB* matGenP = new TerrainMaterialGeneratorB();
+        matGen.bind(matGenP);
+        mTerrainGlobals->setDefaultMaterialGenerator(matGen);
+
+        TerrainMaterialGenerator::Profile* const activeProfile =
+            mTerrainGlobals->getDefaultMaterialGenerator()
+                           ->getActiveProfile();
+        mActiveProfile = static_cast<TerrainMaterialGeneratorB::SM2Profile*>(activeProfile);
+
+        //The pixel error should be as high as possible without it being noticed
+        //as it governs how fast mesh quality decreases.
+        mTerrainGlobals->setMaxPixelError(8);
+
+        mTerrainGlobals->setLayerBlendMapSize(32);
+        mTerrainGlobals->setDefaultGlobalColourMapSize(65);
+
+        //10 (default) didn't seem to be quite enough
+        mTerrainGlobals->setSkirtSize(128);
+
+        //due to the sudden flick between composite and non composite textures,
+        //this seemed the distance where it wasn't too noticeable
+        mTerrainGlobals->setCompositeMapDistance(mWorldSize*2);
+        
+        mActiveProfile->setLightmapEnabled(false);
+        mActiveProfile->setLayerSpecularMappingEnabled(false);
+        mActiveProfile->setLayerNormalMappingEnabled(false);
+        mActiveProfile->setLayerParallaxMappingEnabled(false);
+        mActiveProfile->setReceiveDynamicShadowsEnabled(false);
+
+        //composite maps lead to a drastic reduction in loading time so are
+        //disabled
+        mActiveProfile->setCompositeMapEnabled(false);
+
+        mTerrainGroup = OGRE_NEW TerrainGroup(mgr,
+                                              Terrain::ALIGN_X_Z,
+                                              mLandSize,
+                                              mWorldSize);
+
+        mTerrainGroup->setOrigin(Vector3(mWorldSize/2,
+                                         0,
+                                         -mWorldSize/2));
+
+        Terrain::ImportData& importSettings = mTerrainGroup->getDefaultImportSettings();
+
+        importSettings.inputBias    = 0;
+        importSettings.terrainSize  = mLandSize;
+        importSettings.worldSize    = mWorldSize;
+        importSettings.minBatchSize = 9;
+        importSettings.maxBatchSize = mLandSize;
+
+        importSettings.deleteInputData = true;
+    }
+
+    //----------------------------------------------------------------------------------------------
+
+    TerrainManager::~TerrainManager()
+    {
+        OGRE_DELETE mTerrainGroup;
+        OGRE_DELETE mTerrainGlobals;
+    }
+    
+    //----------------------------------------------------------------------------------------------
+    
+    void TerrainManager::setDiffuse(const ColourValue& diffuse)
+    {
+        mTerrainGlobals->setCompositeMapDiffuse(diffuse);
+    }
+    
+    //----------------------------------------------------------------------------------------------
+    
+    void TerrainManager::setAmbient(const ColourValue& ambient)
+    {
+        mTerrainGlobals->setCompositeMapAmbient(ambient);
+    }
+
+    //----------------------------------------------------------------------------------------------
+
+    void TerrainManager::cellAdded(MWWorld::Ptr::CellStore *store)
+    {
+        const int cellX = store->cell->getGridX();
+        const int cellY = store->cell->getGridY();
+
+        //split the cell terrain into four segments
+        const int numTextures = ESM::Land::LAND_TEXTURE_SIZE/2;
+
+        for ( int x = 0; x < 2; x++ )
+        {
+            for ( int y = 0; y < 2; y++ )
+            {
+                Terrain::ImportData terrainData =
+                    mTerrainGroup->getDefaultImportSettings();
+
+                const int terrainX = cellX * 2 + x;
+                const int terrainY = cellY * 2 + y;
+
+                //it makes far more sense to reallocate the memory here,
+                //and let Ogre deal with it due to the issues with deleting
+                //it at the wrong time if using threads (Which Terrain does)
+                terrainData.inputFloat = OGRE_ALLOC_T(float,
+                                                      mLandSize*mLandSize,
+                                                      MEMCATEGORY_GEOMETRY);
+
+                //copy the height data row by row
+                for ( int terrainCopyY = 0; terrainCopyY < mLandSize; terrainCopyY++ )
+                {
+                                           //the offset of the current segment
+                    const size_t yOffset = y * (mLandSize-1) * ESM::Land::LAND_SIZE +
+                                           //offset of the row
+                                           terrainCopyY * ESM::Land::LAND_SIZE;
+                    const size_t xOffset = x * (mLandSize-1);
+
+                    memcpy(&terrainData.inputFloat[terrainCopyY*mLandSize],
+                           &store->land[1][1]->landData->heights[yOffset + xOffset],
+                           mLandSize*sizeof(float));
+                }
+
+                std::map<uint16_t, int> indexes;
+                initTerrainTextures(&terrainData, store,
+                                    x * numTextures, y * numTextures,
+                                    numTextures, indexes);
+
+                if (mTerrainGroup->getTerrain(terrainX, terrainY) == NULL)
+                {
+                    mTerrainGroup->defineTerrain(terrainX, terrainY, &terrainData);
+
+                    mTerrainGroup->loadTerrain(terrainX, terrainY, true);
+
+                    Terrain* terrain = mTerrainGroup->getTerrain(terrainX, terrainY);
+                    initTerrainBlendMaps(terrain, store,
+                                         x * numTextures, y * numTextures,
+                                         numTextures,
+                                         indexes);
+
+                    if ( store->land[1][1]->landData->usingColours )
+                    {
+                        // disable or enable global colour map (depends on available vertex colours)
+                        mActiveProfile->setGlobalColourMapEnabled(true);
+                        TexturePtr vertex = getVertexColours(store,
+                                                             x*(mLandSize-1),
+                                                             y*(mLandSize-1),
+                                                             mLandSize);
+
+                        //this is a hack to get around the fact that Ogre seems to
+                        //corrupt the global colour map leading to rendering errors
+                        MaterialPtr mat = terrain->getMaterial();
+                        mat->getTechnique(0)->getPass(0)->getTextureUnitState(1)->setTextureName( vertex->getName() );
+                        //mat = terrain->_getCompositeMapMaterial();
+                        //mat->getTechnique(0)->getPass(0)->getTextureUnitState(1)->setTextureName( vertex->getName() );
+                    }
+                    else
+                    {
+                        mActiveProfile->setGlobalColourMapEnabled(false);
+                    }
+                }
+            }
+        }
+
+        mTerrainGroup->freeTemporaryResources();
+    }
+
+    //----------------------------------------------------------------------------------------------
+
+    void TerrainManager::cellRemoved(MWWorld::Ptr::CellStore *store)
+    {
+        for ( int x = 0; x < 2; x++ )
+        {
+            for ( int y = 0; y < 2; y++ )
+            {
+                mTerrainGroup->unloadTerrain(store->cell->getGridX() * 2 + x,
+                                             store->cell->getGridY() * 2 + y);
+            }
+        }
+    }
+
+    //----------------------------------------------------------------------------------------------
+
+    void TerrainManager::initTerrainTextures(Terrain::ImportData* terrainData,
+                                             MWWorld::Ptr::CellStore* store,
+                                             int fromX, int fromY, int size,
+                                             std::map<uint16_t, int>& indexes)
+    {
+        assert(store != NULL && "store must be a valid pointer");
+        assert(terrainData != NULL && "Must have valid terrain data");
+        assert(fromX >= 0 && fromY >= 0 &&
+               "Can't get a terrain texture on terrain outside the current cell");
+        assert(fromX+size <= ESM::Land::LAND_TEXTURE_SIZE &&
+               fromY+size <= ESM::Land::LAND_TEXTURE_SIZE &&
+               "Can't get a terrain texture on terrain outside the current cell");
+
+        //this ensures that the ltex indexes are sorted (or retrived as sorted
+        //which simplifies shading between cells).
+        //
+        //If we don't sort the ltex indexes, the splatting order may differ between
+        //cells which may lead to inconsistent results when shading between cells
+        std::set<uint16_t> ltexIndexes;
+        for ( int y = fromY - 1; y < fromY + size + 1; y++ )
+        {
+            for ( int x = fromX - 1; x < fromX + size + 1; x++ )
+            {
+                ltexIndexes.insert(getLtexIndexAt(store, x, y));
+            }
+        }
+
+        //there is one texture that we want to use as a base (i.e. it won't have
+        //a blend map). This holds the ltex index of that base texture so that
+        //we know not to include it in the output map
+        int baseTexture = -1;
+        for ( std::set<uint16_t>::iterator iter = ltexIndexes.begin();
+              iter != ltexIndexes.end();
+              ++iter )
+        {
+            const uint16_t ltexIndex = *iter;
+            //this is the base texture, so we can ignore this at present
+            if ( ltexIndex == baseTexture )
+            {
+                continue;
+            }
+
+            const std::map<uint16_t, int>::const_iterator it = indexes.find(ltexIndex);
+
+            if ( it == indexes.end() )
+            {
+                //NB: All vtex ids are +1 compared to the ltex ids
+
+                assert( (int)store->landTextures->ltex.size() >= (int)ltexIndex - 1 &&
+                       "LAND.VTEX must be within the bounds of the LTEX array");
+                
+                std::string texture;
+                if ( ltexIndex == 0 )
+                {
+                    texture = "_land_default.dds";
+                }
+                else
+                {
+                    texture = store->landTextures->ltex[ltexIndex-1].texture;
+                    //TODO this is needed due to MWs messed up texture handling
+                    texture = texture.substr(0, texture.rfind(".")) + ".dds";
+                }
+
+                const size_t position = terrainData->layerList.size();
+                terrainData->layerList.push_back(Terrain::LayerInstance());
+
+                terrainData->layerList[position].worldSize = 256;
+                terrainData->layerList[position].textureNames.push_back("textures\\" + texture);
+
+                if ( baseTexture == -1 )
+                {
+                    baseTexture = ltexIndex;
+                }
+                else
+                {
+                    indexes[ltexIndex] = position;
+                }
+            }
+        }
+    }
+
+    //----------------------------------------------------------------------------------------------
+
+    void TerrainManager::initTerrainBlendMaps(Terrain* terrain,
+                                              MWWorld::Ptr::CellStore* store,
+                                              int fromX, int fromY, int size,
+                                              const std::map<uint16_t, int>& indexes)
+    {
+        assert(store != NULL && "store must be a valid pointer");
+        assert(terrain != NULL && "Must have valid terrain");
+        assert(fromX >= 0 && fromY >= 0 &&
+               "Can't get a terrain texture on terrain outside the current cell");
+        assert(fromX+size <= ESM::Land::LAND_TEXTURE_SIZE &&
+               fromY+size <= ESM::Land::LAND_TEXTURE_SIZE &&
+               "Can't get a terrain texture on terrain outside the current cell");
+
+        //size must be a power of 2 as we do divisions with a power of 2 number
+        //that need to result in an integer for correct splatting
+        assert( (size & (size - 1)) == 0 && "Size must be a power of 2");
+
+        const int blendMapSize = terrain->getLayerBlendMapSize();
+        const int splatSize    = blendMapSize / size;
+
+        //zero out every map
+        std::map<uint16_t, int>::const_iterator iter;
+        for ( iter = indexes.begin(); iter != indexes.end(); ++iter )
+        {
+            float* pBlend = terrain->getLayerBlendMap(iter->second)
+                                   ->getBlendPointer();
+            memset(pBlend, 0, sizeof(float) * blendMapSize * blendMapSize);
+        }
+
+        //covert the ltex data into a set of blend maps
+        for ( int texY = fromY - 1; texY < fromY + size + 1; texY++ )
+        {
+            for ( int texX = fromX - 1; texX < fromX + size + 1; texX++ )
+            {
+                const uint16_t ltexIndex = getLtexIndexAt(store, texX, texY);
+
+                //check if it is the base texture (which isn't in the map) and
+                //if it is don't bother altering the blend map for it
+                if ( indexes.find(ltexIndex) == indexes.end() )
+                {
+                    continue;
+                }
+
+                //while texX is the splat index relative to the entire cell,
+                //relX is relative to the current segment we are splatting
+                const int relX = texX - fromX;
+                const int relY = texY - fromY;
+
+                const int layerIndex = indexes.find(ltexIndex)->second;
+
+                float* const pBlend = terrain->getLayerBlendMap(layerIndex)
+                                             ->getBlendPointer();
+
+                for ( int y = -1; y < splatSize + 1; y++ ){
+                    for ( int x = -1; x < splatSize + 1; x++ ){
+
+                        //Note: Y is reversed
+                        const int splatY = blendMapSize - 1 - relY * splatSize - y;
+                        const int splatX = relX * splatSize + x;
+
+                        if ( splatX >= 0 && splatX < blendMapSize &&
+                             splatY >= 0 && splatY < blendMapSize )
+                        {
+                            const int index = (splatY)*blendMapSize + splatX;
+
+                            if ( y >= 0 && y < splatSize &&
+                                 x >= 0 && x < splatSize )
+                            {
+                                pBlend[index] = 1;
+                            }
+                            else
+                            {
+                                //this provides a transition shading but also 
+                                //rounds off the corners slightly
+                                pBlend[index] = std::min(1.0f, pBlend[index] + 0.5f);
+                            }
+                        }
+
+                    }
+                }
+            }
+        }
+
+        for ( int i = 1; i < terrain->getLayerCount(); i++ )
+        {
+             TerrainLayerBlendMap* blend = terrain->getLayerBlendMap(i);
+             blend->dirty();
+             blend->update();
+        }
+
+    }
+
+    //----------------------------------------------------------------------------------------------
+
+    int TerrainManager::getLtexIndexAt(MWWorld::Ptr::CellStore* store,
+                                       int x, int y)
+    {
+        //check texture index falls within the 9 cell bounds
+        //as this function can't cope with anything above that
+        assert(x >= -ESM::Land::LAND_TEXTURE_SIZE &&
+               y >= -ESM::Land::LAND_TEXTURE_SIZE &&
+               "Trying to get land textures that are out of bounds");
+
+        assert(x < 2*ESM::Land::LAND_TEXTURE_SIZE &&
+               y < 2*ESM::Land::LAND_TEXTURE_SIZE &&
+               "Trying to get land textures that are out of bounds");
+
+        assert(store != NULL && "Store pointer must be valid");
+
+        //default center cell is indexed at (1,1)
+        int cellX = 1;
+        int cellY = 1;
+
+        if ( x < 0 )
+        {
+            cellX--;
+            x += ESM::Land::LAND_TEXTURE_SIZE;
+        }
+        else if ( x >= ESM::Land::LAND_TEXTURE_SIZE )
+        {
+            cellX++;
+            x -= ESM::Land::LAND_TEXTURE_SIZE;
+        }
+
+        if ( y < 0 )
+        {
+            cellY--;
+            y += ESM::Land::LAND_TEXTURE_SIZE;
+        }
+        else if ( y >= ESM::Land::LAND_TEXTURE_SIZE )
+        {
+            cellY++;
+            y -= ESM::Land::LAND_TEXTURE_SIZE;
+        }
+
+        return store->land[cellX][cellY]
+                    ->landData
+                    ->textures[y * ESM::Land::LAND_TEXTURE_SIZE + x];
+    }
+
+    //----------------------------------------------------------------------------------------------
+
+    TexturePtr TerrainManager::getVertexColours(MWWorld::Ptr::CellStore* store,
+                                                    int fromX, int fromY, int size)
+    {
+        TextureManager* const texMgr = TextureManager::getSingletonPtr();
+
+        const std::string colourTextureName = "VtexColours_" +
+                                              boost::lexical_cast<std::string>(store->cell->getGridX()) +
+                                              "_" +
+                                              boost::lexical_cast<std::string>(store->cell->getGridY()) +
+                                              "_" +
+                                              boost::lexical_cast<std::string>(fromX) +
+                                              "_" +
+                                              boost::lexical_cast<std::string>(fromY);
+
+        TexturePtr tex = texMgr->getByName(colourTextureName);
+        if ( !tex.isNull() )
+        {
+            return tex;
+        }
+
+        tex = texMgr->createManual(colourTextureName,
+                                   ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME,
+                                   TEX_TYPE_2D, size, size, 0, PF_BYTE_BGR);
+
+        HardwarePixelBufferSharedPtr pixelBuffer = tex->getBuffer();
+         
+        pixelBuffer->lock(HardwareBuffer::HBL_DISCARD);
+        const PixelBox& pixelBox = pixelBuffer->getCurrentLock();
+         
+        uint8* pDest = static_cast<uint8*>(pixelBox.data);
+         
+        const char* const colours = store->land[1][1]->landData->colours;
+        for ( int y = 0; y < size; y++ )
+        {
+            for ( int x = 0; x < size; x++ )
+            {
+                const size_t colourOffset = (y+fromY)*3*65 + (x+fromX)*3;
+
+                assert( colourOffset >= 0 && colourOffset < 65*65*3 &&
+                        "Colour offset is out of the expected bounds of record" );
+
+                const unsigned char r = colours[colourOffset + 0];
+                const unsigned char g = colours[colourOffset + 1];
+                const unsigned char b = colours[colourOffset + 2];
+
+                //as is the case elsewhere we need to flip the y
+                const size_t imageOffset = (size - 1 - y)*size*4 + x*4;
+                pDest[imageOffset + 0] = b;
+                pDest[imageOffset + 1] = g;
+                pDest[imageOffset + 2] = r;
+            }
+        }
+         
+        pixelBuffer->unlock();
+
+        return tex;
+    }
+
+}

apps/openmw/mwrender/terrain.hpp

@@ -0,0 +1,109 @@
+#ifndef _GAME_RENDER_TERRAIN_H
+#define _GAME_RENDER_TERRAIN_H
+
+#include <OgreTerrain.h>
+#include "terrainmaterial.hpp"
+
+#include "../mwworld/ptr.hpp"
+
+namespace Ogre{
+    class SceneManager;
+    class TerrainGroup;
+    class TerrainGlobalOptions;
+    class Terrain;
+}
+
+namespace MWRender{
+
+    /**
+     * Implements the Morrowind terrain using the Ogre Terrain Component
+     *
+     * Each terrain cell is split into four blocks as this leads to an increase
+     * in performance and means we don't hit splat limits quite as much
+     */
+    class TerrainManager{
+    public:
+        TerrainManager(Ogre::SceneManager*);
+        virtual ~TerrainManager();
+
+        void setDiffuse(const Ogre::ColourValue& diffuse);
+        void setAmbient(const Ogre::ColourValue& ambient);
+
+        void cellAdded(MWWorld::Ptr::CellStore* store);
+        void cellRemoved(MWWorld::Ptr::CellStore* store);
+    private:
+        Ogre::TerrainGlobalOptions* mTerrainGlobals;
+        Ogre::TerrainGroup* mTerrainGroup;
+
+        Ogre::TerrainMaterialGeneratorB::SM2Profile* mActiveProfile;
+
+        /**
+         * The length in verticies of a single terrain block.
+         */
+        static const int mLandSize = (ESM::Land::LAND_SIZE - 1)/2 + 1;
+
+        /**
+         * The length in game units of a single terrain block.
+         */
+        static const int mWorldSize = ESM::Land::REAL_SIZE/2;
+
+        /**
+         * Setups up the list of textures for part of a cell, using indexes as
+         * an output to create a mapping of MW LtexIndex to the relevant terrain
+         * layer
+         *
+         * @param terrainData the terrain data to setup the textures for
+         * @param store the cell store for the given terrain cell
+         * @param fromX the ltex index in the current cell to start making the texture from
+         * @param fromY the ltex index in the current cell to start making the texture from
+         * @param size the size (number of splats) to get
+         * @param indexes a mapping of ltex index to the terrain texture layer that
+         *          can be used by initTerrainBlendMaps
+         */
+        void initTerrainTextures(Ogre::Terrain::ImportData* terrainData,
+                                 MWWorld::Ptr::CellStore* store,
+                                 int fromX, int fromY, int size,
+                                 std::map<uint16_t, int>& indexes);
+
+        /**
+         * Creates the blend (splatting maps) for the given terrain from the ltex data.
+         *
+         * @param terrain the terrain object for the current cell
+         * @param store the cell store for the given terrain cell
+         * @param fromX the ltex index in the current cell to start making the texture from
+         * @param fromY the ltex index in the current cell to start making the texture from
+         * @param size the size (number of splats) to get
+         * @param indexes the mapping of ltex to blend map produced by initTerrainTextures
+         */
+        void initTerrainBlendMaps(Ogre::Terrain* terrain,
+                                  MWWorld::Ptr::CellStore* store,
+                                  int fromX, int fromY, int size,
+                                  const std::map<uint16_t, int>& indexes);
+
+        /**
+         * Gets a LTEX index at the given point, assuming the current cell
+         * starts at (0,0). This supports getting values from the surrounding
+         * cells so negative x, y is acceptable
+         *
+         * @param store the cell store for the current cell
+         * @param x, y the splat position of the ltex index to get relative to the
+         *             first splat of the current cell
+         */
+        int getLtexIndexAt(MWWorld::Ptr::CellStore* store, int x, int y);
+
+        /**
+         * Due to the fact that Ogre terrain doesn't support vertex colours
+         * we have to generate them manually
+         *
+         * @param store the cell store for the given terrain cell
+         * @param fromX the *vertex* index in the current cell to start making texture from
+         * @param fromY the *vertex* index in the current cell to start making the texture from
+         * @param size the size (number of vertexes) to get
+         */
+        Ogre::TexturePtr getVertexColours(MWWorld::Ptr::CellStore* store,
+                                          int fromX, int fromY, int size);
+    };
+
+}
+
+#endif // _GAME_RENDER_TERRAIN_H

apps/openmw/mwrender/terrainmaterial.hpp

@@ -0,0 +1,266 @@
+/*
+-----------------------------------------------------------------------------
+This source file is part of OGRE
+(Object-oriented Graphics Rendering Engine)
+For the latest info, see http://www.ogre3d.org/
+
+Copyright (c) 2000-2011 Torus Knot Software Ltd
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+-----------------------------------------------------------------------------
+*/
+
+#ifndef __Ogre_TerrainMaterialGeneratorB_H__
+#define __Ogre_TerrainMaterialGeneratorB_H__
+
+#include "OgreTerrainPrerequisites.h"
+#include "OgreTerrainMaterialGenerator.h"
+#include "OgreGpuProgramParams.h"
+
+namespace Ogre
+{
+	class PSSMShadowCameraSetup;
+
+	/** \addtogroup Optional Components
+	*  @{
+	*/
+	/** \addtogroup Terrain
+	*  Some details on the terrain component
+	*  @{
+	*/
+
+
+	/** A TerrainMaterialGenerator which can cope with normal mapped, specular mapped
+		terrain. 
+		@note Requires the Cg plugin to render correctly
+	*/
+	class _OgreTerrainExport TerrainMaterialGeneratorB : public TerrainMaterialGenerator
+	{
+	public:
+		TerrainMaterialGeneratorB();
+		~TerrainMaterialGeneratorB();
+
+		/** Shader model 2 profile target. 
+		*/
+		class _OgreTerrainExport SM2Profile : public TerrainMaterialGenerator::Profile
+		{
+		public:
+			SM2Profile(TerrainMaterialGenerator* parent, const String& name, const String& desc);
+			~SM2Profile();
+
+            bool isVertexCompressionSupported() const {return false;}
+            
+			MaterialPtr generate(const Terrain* terrain);
+			MaterialPtr generateForCompositeMap(const Terrain* terrain);
+			uint8 getMaxLayers(const Terrain* terrain) const;
+			void updateParams(const MaterialPtr& mat, const Terrain* terrain);
+			void updateParamsForCompositeMap(const MaterialPtr& mat, const Terrain* terrain);
+			void requestOptions(Terrain* terrain);
+
+			/** Whether to support normal mapping per layer in the shader (default true). 
+			*/
+			bool isLayerNormalMappingEnabled() const  { return mLayerNormalMappingEnabled; }
+			/** Whether to support normal mapping per layer in the shader (default true). 
+			*/
+			void setLayerNormalMappingEnabled(bool enabled);
+			/** Whether to support parallax mapping per layer in the shader (default true). 
+			*/
+			bool isLayerParallaxMappingEnabled() const  { return mLayerParallaxMappingEnabled; }
+			/** Whether to support parallax mapping per layer in the shader (default true). 
+			*/
+			void setLayerParallaxMappingEnabled(bool enabled);
+			/** Whether to support specular mapping per layer in the shader (default true). 
+			*/
+			bool isLayerSpecularMappingEnabled() const  { return mLayerSpecularMappingEnabled; }
+			/** Whether to support specular mapping per layer in the shader (default true). 
+			*/
+			void setLayerSpecularMappingEnabled(bool enabled);
+			/** Whether to support a global colour map over the terrain in the shader,
+				if it's present (default true). 
+			*/
+			bool isGlobalColourMapEnabled() const  { return mGlobalColourMapEnabled; }
+			/** Whether to support a global colour map over the terrain in the shader,
+			if it's present (default true). 
+			*/
+			void setGlobalColourMapEnabled(bool enabled);
+			/** Whether to support a light map over the terrain in the shader,
+			if it's present (default true). 
+			*/
+			bool isLightmapEnabled() const  { return mLightmapEnabled; }
+			/** Whether to support a light map over the terrain in the shader,
+			if it's present (default true). 
+			*/
+			void setLightmapEnabled(bool enabled);
+			/** Whether to use the composite map to provide a lower LOD technique
+				in the distance (default true). 
+			*/
+			bool isCompositeMapEnabled() const  { return mCompositeMapEnabled; }
+			/** Whether to use the composite map to provide a lower LOD technique
+			in the distance (default true). 
+			*/
+			void setCompositeMapEnabled(bool enabled);
+			/** Whether to support dynamic texture shadows received from other 
+				objects, on the terrain (default true). 
+			*/
+			bool getReceiveDynamicShadowsEnabled() const  { return mReceiveDynamicShadows; }
+			/** Whether to support dynamic texture shadows received from other 
+			objects, on the terrain (default true). 
+			*/
+			void setReceiveDynamicShadowsEnabled(bool enabled);
+
+			/** Whether to use PSSM support dynamic texture shadows, and if so the 
+				settings to use (default 0). 
+			*/
+			void setReceiveDynamicShadowsPSSM(PSSMShadowCameraSetup* pssmSettings);
+			/** Whether to use PSSM support dynamic texture shadows, and if so the 
+			settings to use (default 0). 
+			*/
+			PSSMShadowCameraSetup* getReceiveDynamicShadowsPSSM() const { return mPSSM; }
+			/** Whether to use depth shadows (default false). 
+			*/
+			void setReceiveDynamicShadowsDepth(bool enabled);
+			/** Whether to use depth shadows (default false). 
+			*/
+			bool getReceiveDynamicShadowsDepth() const { return mDepthShadows; }
+			/** Whether to use shadows on low LOD material rendering (when using composite map) (default false). 
+			*/
+			void setReceiveDynamicShadowsLowLod(bool enabled);
+			/** Whether to use shadows on low LOD material rendering (when using composite map) (default false). 
+			*/
+			bool getReceiveDynamicShadowsLowLod() const { return mLowLodShadows; }
+
+                        int getNumberOfLightsSupported() const;
+
+			/// Internal
+			bool _isSM3Available() const { return mSM3Available; }
+		
+		protected:
+
+			enum TechniqueType
+			{
+				HIGH_LOD, 
+				LOW_LOD, 
+				RENDER_COMPOSITE_MAP
+			};
+			void addTechnique(const MaterialPtr& mat, const Terrain* terrain, TechniqueType tt);
+
+			/// Interface definition for helper class to generate shaders
+			class _OgreTerrainExport ShaderHelper : public TerrainAlloc
+			{
+			public:
+				ShaderHelper() {}
+				virtual ~ShaderHelper() {}
+				virtual HighLevelGpuProgramPtr generateVertexProgram(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt);
+				virtual HighLevelGpuProgramPtr generateFragmentProgram(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt);
+				virtual void updateParams(const SM2Profile* prof, const MaterialPtr& mat, const Terrain* terrain, bool compositeMap);
+			protected:
+				virtual String getVertexProgramName(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt);
+				virtual String getFragmentProgramName(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt);
+				virtual HighLevelGpuProgramPtr createVertexProgram(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt) = 0;
+				virtual HighLevelGpuProgramPtr createFragmentProgram(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt) = 0;
+				virtual void generateVertexProgramSource(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream);
+				virtual void generateFragmentProgramSource(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream);
+				virtual void generateVpHeader(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream) = 0;
+				virtual void generateFpHeader(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream) = 0;
+				virtual void generateVpLayer(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, uint layer, StringUtil::StrStreamType& outStream) = 0;
+				virtual void generateFpLayer(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, uint layer, StringUtil::StrStreamType& outStream) = 0;
+				virtual void generateVpFooter(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream) = 0;
+				virtual void generateFpFooter(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream) = 0;
+				virtual void defaultVpParams(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, const HighLevelGpuProgramPtr& prog);
+				virtual void defaultFpParams(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, const HighLevelGpuProgramPtr& prog);
+				virtual void updateVpParams(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, const GpuProgramParametersSharedPtr& params);
+				virtual void updateFpParams(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, const GpuProgramParametersSharedPtr& params);
+				static String getChannel(uint idx);
+
+				size_t mShadowSamplerStartHi;
+				size_t mShadowSamplerStartLo;
+
+			};
+
+			/// Utility class to help with generating shaders for Cg / HLSL.
+			class _OgreTerrainExport ShaderHelperCg : public ShaderHelper
+			{
+			protected:
+				HighLevelGpuProgramPtr createVertexProgram(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt);
+				HighLevelGpuProgramPtr createFragmentProgram(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt);
+				void generateVpHeader(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream);
+				void generateFpHeader(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream);
+				void generateVpLayer(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, uint layer, StringUtil::StrStreamType& outStream);
+				void generateFpLayer(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, uint layer, StringUtil::StrStreamType& outStream);
+				void generateVpFooter(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream);
+				void generateFpFooter(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream);
+				uint generateVpDynamicShadowsParams(uint texCoordStart, const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream);
+				void generateVpDynamicShadows(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream);
+				void generateFpDynamicShadowsHelpers(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream);
+				void generateFpDynamicShadowsParams(uint* texCoord, uint* sampler, const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream);
+				void generateFpDynamicShadows(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream);
+			};
+
+			class _OgreTerrainExport ShaderHelperHLSL : public ShaderHelperCg
+			{
+			protected:
+				HighLevelGpuProgramPtr createVertexProgram(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt);
+				HighLevelGpuProgramPtr createFragmentProgram(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt);
+			};
+
+			/// Utility class to help with generating shaders for GLSL.
+			class _OgreTerrainExport ShaderHelperGLSL : public ShaderHelper
+			{
+			protected:
+				HighLevelGpuProgramPtr createVertexProgram(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt);
+				HighLevelGpuProgramPtr createFragmentProgram(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt);
+				void generateVpHeader(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream) {}
+				void generateFpHeader(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream) {}
+				void generateVpLayer(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, uint layer, StringUtil::StrStreamType& outStream) {}
+				void generateFpLayer(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, uint layer, StringUtil::StrStreamType& outStream) {}
+				void generateVpFooter(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream) {}
+				void generateFpFooter(const SM2Profile* prof, const Terrain* terrain, TechniqueType tt, StringUtil::StrStreamType& outStream) {}
+			};
+
+			ShaderHelper* mShaderGen;
+			bool mLayerNormalMappingEnabled;
+			bool mLayerParallaxMappingEnabled;
+			bool mLayerSpecularMappingEnabled;
+			bool mGlobalColourMapEnabled;
+			bool mLightmapEnabled;
+			bool mCompositeMapEnabled;
+			bool mReceiveDynamicShadows;
+			PSSMShadowCameraSetup* mPSSM;
+			bool mDepthShadows;
+			bool mLowLodShadows;
+			bool mSM3Available;
+
+			bool isShadowingEnabled(TechniqueType tt, const Terrain* terrain) const;
+
+		};
+
+
+
+
+	};
+
+
+
+	/** @} */
+	/** @} */
+
+
+}
+
+#endif

components/bsa/bsa_archive.cpp

@@ -256,8 +256,12 @@ public:
     return DataStreamPtr(new Mangle2OgreStream(strm));
   }
 
+bool exists(const String& filename) {
+    return cexists(filename);
+}
+
   // Check if the file exists.
-  bool exists(const String& filename) { 
+  bool cexists(const String& filename) const { 
     String passed = filename;
 	if(filename.at(filename.length() - 1) == '*' || filename.at(filename.length() - 1) == '?' ||  filename.at(filename.length() - 1) == '<'
 		|| filename.at(filename.length() - 1) == '"' || filename.at(filename.length() - 1) == '>' ||  filename.at(filename.length() - 1) == ':'
@@ -308,6 +312,29 @@ return arc.exists(passed.c_str());
      located in BSAs. So instead we channel it through exists() and
      set up a single-element result list if the file is found.
   */
+  FileInfoListPtr findFileInfo(const String& pattern, bool recursive = true,
+                               bool dirs = false) const
+  {
+      FileInfoListPtr ptr = FileInfoListPtr(new FileInfoList());
+
+    // Check if the file exists (only works for single files - wild
+    // cards and recursive search isn't implemented.)
+    if(cexists(pattern))
+      {
+        FileInfo fi;
+        fi.archive = this;
+        fi.filename = pattern;
+        // It apparently doesn't matter that we return bogus
+        // information
+        fi.path = "";
+        fi.compressedSize = fi.uncompressedSize = 0;
+
+        ptr->push_back(fi);
+      }
+
+    return ptr;
+  }
+
   FileInfoListPtr findFileInfo(const String& pattern, bool recursive = true,
                                bool dirs = false)
   {
@@ -315,7 +342,7 @@ return arc.exists(passed.c_str());
 
     // Check if the file exists (only works for single files - wild
     // cards and recursive search isn't implemented.)
-    if(exists(pattern))
+    if(cexists(pattern))
       {
         FileInfo fi;
         fi.archive = this;

components/bsa/bsa_file.cpp

@@ -148,9 +148,9 @@ void BSAFile::readHeader()
 }
 
 /// Get the index of a given file name, or -1 if not found
-int BSAFile::getIndex(const char *str)
+int BSAFile::getIndex(const char *str) const
 {
-  Lookup::iterator it;
+  Lookup::const_iterator it;
   it = lookup.find(str);
 
   if(it == lookup.end()) return -1;

components/bsa/bsa_file.hpp

@@ -93,7 +93,7 @@ class BSAFile
   void readHeader();
 
   /// Get the index of a given file name, or -1 if not found
-  int getIndex(const char *str);
+  int getIndex(const char *str) const;
 
  public:
 
@@ -119,7 +119,7 @@ class BSAFile
    */
 
   /// Check if a file exists
-  bool exists(const char *file) { return getIndex(file) != -1; }
+  bool exists(const char *file) const { return getIndex(file) != -1; }
 
   /** Open a file contained in the archive. Throws an exception if the
       file doesn't exist.

components/esm/loadcell.hpp

@@ -119,6 +119,21 @@ struct Cell
 
   void load(ESMReader &esm);
 
+  bool isExterior() const
+  {
+      return !(data.flags & Interior);
+  }
+
+  int getGridX() const
+  {
+      return data.gridX;
+  }
+
+  int getGridY() const
+  {
+      return data.gridY;
+  }
+
   // Restore the given reader to the stored position. Will try to open
   // the file matching the stored file name. If you want to read from
   // somewhere other than the file system, you need to pre-open the

components/esm/loadland.cpp

@@ -19,14 +19,117 @@ void Land::load(ESMReader &esm)
     int cnt = 0;
 
     // Skip these here. Load the actual data when the cell is loaded.
-    if(esm.isNextSub("VNML")) {esm.skipHSubSize(12675);cnt++;}
+    if (esm.isNextSub("VNML"))
-    if(esm.isNextSub("VHGT")) {esm.skipHSubSize(4232);cnt++;}
+    {
-    if(esm.isNextSub("WNAM")) esm.skipHSubSize(81);
+        esm.skipHSubSize(12675);
-    if(esm.isNextSub("VCLR")) esm.skipHSubSize(12675);
+        cnt++;
-    if(esm.isNextSub("VTEX")) {esm.skipHSubSize(512);cnt++;}
+    }
+    if (esm.isNextSub("VHGT"))
+    {
+        esm.skipHSubSize(4232);
+        cnt++;
+    }
+    if (esm.isNextSub("WNAM"))
+    {
+        esm.skipHSubSize(81);
+    }
+    if (esm.isNextSub("VCLR"))
+    {
+        esm.skipHSubSize(12675);
+    }
+    if (esm.isNextSub("VTEX"))
+    {
+        esm.skipHSubSize(512);
+        cnt++;
+    }
 
     // We need all three of VNML, VHGT and VTEX in order to use the
     // landscape.
     hasData = (cnt == 3);
+
+    dataLoaded = false;
+    landData = NULL;
 }
+
+void Land::loadData(ESMReader &esm)
+{
+    if (dataLoaded)
+    {
+        return;
+    }
+
+    landData = new LandData;
+
+    if (hasData)
+    {
+        esm.restoreContext(context);
+
+        //esm.getHNExact(landData->normals, sizeof(VNML), "VNML");
+        if (esm.isNextSub("VNML"))
+        {
+            esm.skipHSubSize(12675);
+        }
+
+        VHGT rawHeights;
+
+        esm.getHNExact(&rawHeights, sizeof(VHGT), "VHGT");
+        int currentHeightOffset = rawHeights.heightOffset;
+        for (int y = 0; y < LAND_SIZE; y++)
+        {
+            currentHeightOffset += rawHeights.heightData[y * LAND_SIZE];
+            landData->heights[y * LAND_SIZE] = currentHeightOffset * HEIGHT_SCALE;
+
+            int tempOffset = currentHeightOffset;
+            for (int x = 1; x < LAND_SIZE; x++)
+            {
+                tempOffset += rawHeights.heightData[y * LAND_SIZE + x];
+                landData->heights[x + y * LAND_SIZE] = tempOffset * HEIGHT_SCALE;
+            }
+        }
+
+        if (esm.isNextSub("WNAM"))
+        {
+            esm.skipHSubSize(81);
+        }
+        if (esm.isNextSub("VCLR"))
+        {
+            landData->usingColours = true;
+            esm.getHExact(&landData->colours, 3*LAND_NUM_VERTS);
+        }else{
+            landData->usingColours = false;
+        }
+        //TODO fix magic numbers
+        uint16_t vtex[512];
+        esm.getHNExact(&vtex, 512, "VTEX");
+
+        int readPos = 0; //bit ugly, but it works
+        for ( int y1 = 0; y1 < 4; y1++ )
+            for ( int x1 = 0; x1 < 4; x1++ )
+                for ( int y2 = 0; y2 < 4; y2++)
+                    for ( int x2 = 0; x2 < 4; x2++ )
+                        landData->textures[(y1*4+y2)*16+(x1*4+x2)] = vtex[readPos++];
+    }
+    else
+    {
+        landData->usingColours = false;
+        memset(&landData->textures, 0, 512 * sizeof(uint16_t));
+        for (int i = 0; i < LAND_NUM_VERTS; i++)
+        {
+            landData->heights[i] = -256.0f * HEIGHT_SCALE;
+        }
+    }
+
+    dataLoaded = true;
+}
+
+void Land::unloadData()
+{
+    if (dataLoaded)
+    {
+        delete landData;
+        landData = NULL;
+        dataLoaded = false;
+    }
+}
+
 }

components/esm/loadland.hpp

@@ -21,7 +21,61 @@ struct Land
 
     bool hasData;
 
+    bool dataLoaded;
+
+    // number of vertices per side
+    static const int LAND_SIZE = 65;
+
+    // cell terrain size in world coords
+    static const int REAL_SIZE = 8192;
+
+    // total number of vertices
+    static const int LAND_NUM_VERTS = LAND_SIZE * LAND_SIZE;
+
+    static const int HEIGHT_SCALE = 8;
+
+    //number of textures per side of land
+    static const int LAND_TEXTURE_SIZE = 16;
+
+    //total number of textures per land
+    static const int LAND_NUM_TEXTURES = LAND_TEXTURE_SIZE * LAND_TEXTURE_SIZE;
+
+#pragma pack(push,1)
+    struct VHGT
+    {
+        float heightOffset;
+        int8_t heightData[LAND_NUM_VERTS];
+        short unknown1;
+        char unknown2;
+    };
+#pragma pack(pop)
+
+    typedef uint8_t VNML[LAND_NUM_VERTS * 3];
+
+    struct LandData
+    {
+        float heightOffset;
+        float heights[LAND_NUM_VERTS];
+        //float normals[LAND_NUM_VERTS * 3];
+        uint16_t textures[LAND_NUM_TEXTURES];
+
+        bool usingColours;
+        char colours[3 * LAND_NUM_VERTS];
+    };
+
+    LandData *landData;
+
     void load(ESMReader &esm);
+
+    /**
+     * Actually loads data
+     */
+    void loadData(ESMReader &esm);
+
+    /**
+     * Frees memory allocated for land data
+     */
+    void unloadData();
 };
 }
 #endif

components/esm_store/cell_store.hpp

@@ -95,7 +95,8 @@ namespace ESMS
         State_Unloaded, State_Preloaded, State_Loaded
     };
 
-    CellStore (const ESM::Cell *cell_) : cell (cell_), mState (State_Unloaded) {}
+    CellStore (const ESM::Cell *cell_) : cell (cell_), mState (State_Unloaded)
+                                         {}
 
     const ESM::Cell *cell;
     State mState;
@@ -123,6 +124,9 @@ namespace ESMS
     CellRefList<Static, D>            statics;
     CellRefList<Weapon, D>            weapons;
 
+    const Land* land[3][3];
+    const LTexList* landTextures;
+
     void load (const ESMStore &store, ESMReader &esm)
     {
         if (mState!=State_Loaded)
@@ -134,6 +138,21 @@ namespace ESMS
 
             loadRefs (store, esm);
 
+            if ( ! (cell->data.flags & ESM::Cell::Interior) )
+            {
+                for ( size_t x = 0; x < 3; x++ )
+                {
+                    for ( size_t y = 0; y < 3; y++ )
+                    {
+                        land[x][y] = loadTerrain(cell->data.gridX + x - 1,
+                                                 cell->data.gridY + y - 1,
+                                                 store,
+                                                 esm);
+                    }
+                }
+                landTextures = &store.landTexts;
+            }
+
             mState = State_Loaded;
         }
     }
@@ -179,6 +198,24 @@ namespace ESMS
 
   private:
 
+    Land* loadTerrain(int X, int Y, const ESMStore &store, ESMReader &esm)
+    {
+        // load terrain
+        Land *land = store.lands.search(X, Y);
+        if (land != NULL)
+        {
+            land->loadData(esm);
+        }
+
+        return land;
+    }
+
+    void unloadTerrain(int X, int Y, const ESMStore &store) {
+        assert (false &&
+                "This function is not implemented due to the fact that we now store overlapping land blocks so" &&
+                "we cannot be sure that the land segment is not being used by another CellStore");
+    }
+
     template<class Functor, class List>
     bool forEachImp (Functor& functor, List& list)
     {

components/esm_store/reclists.hpp

@@ -247,7 +247,7 @@ namespace ESMS
     virtual void listIdentifier (std::vector<std::string>& identifier) const {}
 
     // Find land for the given coordinates. Return null if no data.
-    const Land *search(int x, int y) const
+    Land *search(int x, int y) const
     {
       Lands::const_iterator it = lands.find(x);
       if(it==lands.end())

components/esm_store/store.hpp

@@ -116,7 +116,7 @@ namespace ESMS
       recLists[REC_GLOB] = &globals;
       recLists[REC_GMST] = &gameSettings;
       recLists[REC_INGR] = &ingreds;
-      //recLists[REC_LAND] = &lands;
+      recLists[REC_LAND] = &lands;
       recLists[REC_LEVC] = &creatureLists;
       recLists[REC_LEVI] = &itemLists;
       recLists[REC_LIGH] = &lights;

libs/openengine/bullet/BulletShapeLoader.cpp

@@ -62,17 +62,17 @@ size_t BulletShape::calculateSize() const
 
 
 //=============================================================================================================
-template<> BulletShapeManager *Ogre::Singleton<BulletShapeManager>::ms_Singleton = 0;
+template<> BulletShapeManager *Ogre::Singleton<BulletShapeManager>::msSingleton = 0;
 
 BulletShapeManager *BulletShapeManager::getSingletonPtr()
 {
-    return ms_Singleton;
+    return msSingleton;
 }
 
 BulletShapeManager &BulletShapeManager::getSingleton()
 {
-    assert(ms_Singleton);
+    assert(msSingleton);
-    return(*ms_Singleton);
+    return(*msSingleton);
 }
 
 BulletShapeManager::BulletShapeManager()